Indicate the conditions under which the ratio of de Broglie wavelengths of an alpha-particle and a proton will be-

Indicate the conditions under which the ratio of de Broglie wavelength

1.	Indicate the conditions under which the ratio of de Broglie wavelengths of an alpha-particle and a proton will be-
Answer» when the RATIO of their VELOCITIES is 4:1 when the ratio of their velocities is 1:8 when the ratio of their ENERGIES is 128:1 when the ratio of their velocities is 1:16 Answer :B::C